Document
Si41 33G Si412 3G/22G/13G/12G
D U A L -B A N D R F S Y N T H E S I Z E R W I T H I N T E G R A T E D V C O S FOR GSM AND GPRS WIRELESS COMMUNICATIONS
Features
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RF1: 900 MHz to 1.8 GHz RF2: 750 MHz to 1.5 GHz IF: 500 MHz to 1000 MHz
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! ! !
IF Synthesizer
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Integrated VCOs, Loop Filters, ! ! Varactors, and Resonators Minimal External Components Required
Applications
Pin Assignments
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GSM, DCS1800, and PCS1900 Cellular Telephones
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GPRS Data Terminals HSCSD Data Terminals
S C LK S D ATA
S i4 1
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33
Ordering Information: See page 28.
Description
The Si4133G is a monolithic integrated circuit that performs both IF and dual-band RF synthesis for GSM and GPRS wireless communications applications. The Si4133G includes three VCOs, loop filters, reference and VCO dividers, and phase detectors. Divider and power down settings are programmable through a three-wire serial interface.
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G -B T
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Dual-Band RF Synthesizers
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Fast Settling Time: 140 µs Low Phase Noise Programmable Power Down Modes 1 µA Standby Current 18 mA Typical Supply Current 2.7 V to 3.6 V Operation Packages: 24-Pin TSSOP and 28-Pin MLP
Si4133G-BT
1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13
SENB VDDI IF O U T GNDI IF L B IF L A GNDD VDDD GNDD X IN PW DNB AUXOUT
GNDR R FL D R FL C GNDR R FL B
Functional Block Diagram
R efe re nce A m p lifier P ow er D ow n C ontrol
R FL A GNDR GNDR
X IN
÷ 65
P hase D etector R F1
R FL A R FL B
R FO U T VDDR
P W DN B
÷N
R FO U T
S DA TA S CL K S EN B
SDATA
IFOUT
23
GNDR
SENB
SCLK
R FL D R F2
22-b it D ata R egister
÷N
GNDR
1 2 3 4 5 6 7
28
27
26
25
24
22 21 20 19 18 17 16 15
GNDI
VDD I
S erial Interfa ce
P hase D etector
R FL C
Si4133G-BM
GNDI IF L B IF L A GNDD VDDD GNDD X IN
A UX O U T
Test Mux
P hase D etector IF
IFO UT
R FLD R FLC
÷N
IFL A IFL B
GNDR R FLB R FLA GNDR
8
9
10
11
12
13
14
RFOU T
AUX OU T
GNDR
GNDR
VDDR
PW DNB
Patents pending
Rev. 1.1 4/01 Copyright © 2001 by Silicon Laboratories Si4133G-DS11
GNDD
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S i4 13 3G
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2
Rev. 1.1
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Si4133G TA B L E O F C O N T E N T S
Section
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the VCO Center Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self-Tuning Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PLL Loop Dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RF and IF Outputs (RFOUT and IFOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reference Frequency Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Down Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auxiliary Output (AUXOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Descriptions: Si4133G-BT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Descriptions: Si4133G-BM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Si4133G Derivative Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Outline: Si4133G-BT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Outline: Si4133G-BM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Page
4 15 15 15 16 17 17 17 18 18 18 20 24 26 28 28 29 30 32
Rev. 1.1
3
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S i4 13 3G
Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter Ambient Temperature Supply Voltage Supply Voltages Difference Symbol TA VDD V∆ (VDDR – VDDD), (VDDI – VDDD) Test Condition Min –20 2.7 –0.3 Typ 25 3.0 — Max 85 3.6 0.3 Unit °C V V
Note: All minimum and maximum specifications are guaranteed and apply .